What is the climax with Mona from Pretty Little Liars book Unbelievable?

Answer 1

In Sara Shepards fourth book from her Pretty Little Liars series, Unbelievable, Mona is "A". Hanna Marin is the first to discover this shocking truth in the third book, Perfect, when she receives a text message from "A". However, instead of the usual blocked cell number that "A" sends text messages from, Hanna sees a number that she well recognizes. This number belongs to her best friend, Mona Vanderwaal. However, Mona hits her with a car and damages Hanna's memory before she has the chance to tell Aria, Spencer, and Emily about Mona. It isn't until the fourth book when Hanna finally remembers that Mona was the one who sent her that text message, and that Mona is "A". Hanna quickly alerts Aria, Emily, and Spencer. Once Mona realizes that her "A" identity is revealed, she attempts to kill Spencer. However, Spencer pushes Mona off of a cliff out of self-defense, and Mona dies instead. I recommend you read this book, and the entire Pretty Little Liar series! It is truly amazing and utterly nerve-racking. Hope this answers your question!